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Journal of Marine Research

jmr
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Published by Universitas Diponegoro

ISSN : - EISSN : 24077690 DOI : 10.14710/jmr.v9i4.28340

Core Subject : Science,

Earth & Planetary Sciences

The Journal of Tropical Fisheries Management is managed by the Department of Water Resource Management, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University aims to publish the results of basic, applied research in the scope of fisheries resources, fish stock studies, and population dynamics, fish biodiversity, fisheries technology, industrialization and fish trade, fisheries management, and fisheries development policies in the tropics, especially Indonesia. The scope of the area includes: Marine Fisheries Coastal Fisheries Inland Fisheries The focus and scope of this publication are expected to contribute thoughts for the government to strengthen the science of fisheries management

Arjuna Subject : -

Articles 687 Documents

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Pengaruh Hym-248 Terhadap Metamorfosis Planula Karang Acropora spp Di Pulau Sambangan, Kepulauan Karimunjawa Afriandi, Andi; Trianto, Agus; Wijayanti, Diah Permata
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Multispecies synchronous spawning of scleractinian corals was first documented on Great Barrier Reef, Australia in the early 1980s. Settlement as the next stage of planulaeâ€™s life plays an important role in the persistence of coral colony. HYM-248 is one type of peptide synthesis, which has been shown to make Acropora spp planulae metamorphosed. This study aims to determine the influence of Hym-248 on Acropora spp planulaeâ€™s metamorphosed. The method is a eksperimental laboratoris, Slick is collected from Sambangan Island, Karimunjawa Archipelago when spawning occurs simultaneously in March. Provision of Hym-248 administered in 5 different doses, namely: 5x10-7; 1x10-6; 2x10-6; 5x10-6; 1x10-5 M and one control treatment without peptide. The results showed, Hym-248 was able to accele metamorphosis and attachment of planulae from the slick. Planulae started metamorphosis after 8 hours of treatment 1x10-6 M concentration. All of which planulae are in Iwaki wells that contained of Hym-248 are metamorphosed and even to stick. On control treatment only changes shape into an oval until the end of the observation time.

PENGARUH PEMBERIAN PAKAN ALAMI YANG BERBEDA TERHADAP PERTUMBUHAN KEPITING SOKA DI TAMBAK DESA MANGUNHARJO KECAMATAN TUGU Wicaksono, Deki Lukman; Zainuri, Muhammad; Widianingsih, Widianingsih
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Kepiting Bakau (Scylla serrata ForsskÃ¥l, 1775) adalah salah satu jenis komoditas perikanan yang menjanjikan untuk dibudidayakan dan memiliki nilai ekonomis yang tinggi. Untuk meningkatkan nilai ekonomis tersebut diperlukan diversifikasi produk salah satunya yaitu kepiting dengan cangkang yang lunak (soft Karapas/soka). Kepiting Soka (Soft Karapas) dihasilkan dari kepiting yang mengalami molting atau pergantian kulit sebelum kulit yang baru mengeras. Faktor eksternal yang mempengaruhi molting antara lain kualitas air dan ketersediaan pakan. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pakan alami yang berbeda terhadap pertumbuhan Kepiting Soka di pertambakan Desa Mangunharjo Kecamatan Tugu Kota Semarang. Penelitian ini dilaksanakan pada bulan November sampai DesemberÂ tahun 2013 di tambak Desa Mangunharjo Kecamatan Tugu Kota Semarang. Kepiting bakau yang digunakan dalam penelitian berjumlah 27 ekor. Penelitian ini dilakukan dengan menggunakan metode eksperimental terapan. Hasil penelitian menunjukkan bahwa pemberian berbagai jenis pakan alami memberikan pengaruh sangat nyata (F hitung > F tabel 0,01) terhadap laju pertumbuhan spesifik (SGR) kepiting bakau setelah molting/Kepiting Soka (Soft Karapas). Laju pertumbuhan spesifik tertinggi dicapai oleh kepiting bakau yang diberi pakan ikan rucah kuniran (1,05Â±012 % per hari), dan berbeda sangat nyata (nilai selisih perlakuan > BNT 0,01) dengan pakan cumi-cumi (0,58Â±0,05 % per hari) dan berbeda nyata (nilai selisih perlakuan > BNT 0,05) dengan pakan kepiting wideng (0,91Â±0,20 % per hari).

Rumput Laut Gracilaria sp. Sebagai Bioremedian Dalam Sistem Budidaya Polikultur Dengan Kepiting Bakau (Scylla serrata) Wandira, Ardiani Widya; Sunaryo, Sunaryo; Sedjati, Sri
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

ABSTRAK : KendalaÂ dalamÂ budidayaÂ adalah menurunnya kualitas hasil produksi dan penurunan kualitas air. Dibutuhkan biofilter berupa rumput laut Gracilaria sp. untuk mengurangi keadaan tersebut. Tujuan penelitian adalah untuk mengetahui pengaruh perbedaan kepadatan rumput laut sebagai bioremedian dalam sistem budidaya polikultur dengan Kepiting Bakau terhadap kandungan amonia (NH3), nitrit (NO2-), nitrat (NO3-), laju pertumbuhan kepiting bakau, dan rumput laut Gracillaria sp.Â Penelitian di dilaksanakan pada bulan Desember 2015 - Januari 2016 di Laboratorium Basah Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro Semarang.Penelitian Menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan 3 kali pengulangan.Perbedaan pemberian kepadatan rumput laut Gracilaria sp. sebagai bioremedian pada sistem budidaya polikultur Kepiting Bakau berpengaruh terhadap kandungan amonia (NH3), nitrit (NO2-), nitrat (NO3-) dan. Kandungan amonia (NH3) tertinggi pada perlakuan A (0 g rumput laut) berkisar 0,1 mg/L - 0,47 mg/L dan terendah pada perlakuan D (300 g rumput laut) berkisar 0,04 mg/L-0,37 mg/L.Â Kandungan nitrit (NO2-) tertinggi pada perlakuan A, berkisar 0,24 mg/L-0,4 mg/L, dan terendah perlakuan D sebesar 0,13 mg/L-0,26 mg/L. Kandungan nitrat (NO3-) tertinggi pada perlakuan A, berkisar antara 0,6 mg/L -4,59 mg/L, dan terendah perlakuan D sebesar 0,16 mg/L-2,87 mg/L. Laju pertumbuhan spesifik bobot harian kepiting bakau pada perlakuan A 0,27 % per hari, B 0,31 % per hari, C 0,44 % per hari dan D 0,56 % per hari dan laju pertumbuhan spesifik berat harian rumput laut Gracilaria sp.Â pada perlakuan A 0 % (kontrol / tidak diberi rumput laut), B 0,49 % per hari,Â C 0,3 % per hari dan D 0,21 % per hari. Hal ini perbedaan pemberian kepadatan rumput laut Gracilaria sp. sebagai bioremedian pada sistem budidaya polikultur kepiting bakau berpengaruh terhadap laju pertumbuhan spesifik harian Kepiting Bakau dan laju pertumbuhan spesifik harian rumput laut Gracilaria sp.Â ABSTRACT : One of the obstacles faced in aquaculture is decreasing quality of production as a result of water qualities deoterition. To reduce and overcome this situation is addition of biofilter. Biofilter used is seaweed Gracilaria sp. The study was aimed to know the influence density of difference seaweed as bioremedian in polyculture system with mud crab to ammonia (NH3), nitrite (NO2-), nitrate (NO3-), and the specific growth rate of mud crab and Gracilaria sp. This research was conducted in December 2015 to January 2016 at wet laboratory of the Department of Marine Fisheries and Marine Sciences Faculty of the University of Diponegoro in Semarang. This study used completely randomized designed (RAL) with 4 treatments and 3 replications.The effect give difference of density Gracilaria sp. as bioremedian on crab mud polyculture systems was affect the content of ammonia (NH3), nitrite (NO2-), nitrate (NO3-). The highest content of ammonia (NH3) in the treatment of A (0 g seaweed) ranged between 0,1 mg/L to 0,47 mg/L and the lowest content of ammonia (NH3)Â in treatment D (300 g seaweed) ranged between 0,04 mg/L to 0,37 mg/L. The highest content of nitrite (NO2-)Â Â in the treatment of A, ranging from 0,24 mg/L to 0,4 mg/L, and the lowest in treatment D with 0,13 mg/L to 0,26 mg/L. The highest content of nitrate (NO3-) in the treatment of A with 0,6 mg/L to 4,59 mg/L, and the lowest in treatment D with a content of 0,16 mg/L to 2,87 mg/L. Specific growth rate mud crab in treatment A 0,27 % / day, B 0,31 % / day, C 0,44 % / day dan D 0,56 % / day and specific growth rate of the seaweed Gracilaria sp on treatment A 0% (control / not given seaweed), B 0,49 % / day,Â C 0,3 % / day dan D 0,21 % / day. The difference of Gracilaria sp.density as bioremedian on mud crab polyculture systems affected the specific growth rate of mud crab and specific growth rate Gracilaria sp.

Kandungan Kolesterol Kepiting Bakau (Scylla serrata) Jantan Dan Betina Pada Lokasi Yang Berbeda Pramudya, Tunas Pulung; Suryono, Chrisna Adhi; Supriyantini, Endang
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Mud crab (Scylla serrata) have potency commercial market in this country and the other country. That thing because mud crab (Scylla serrata) flesh has a delicious taste and high nutrition. People havenâ€™t knowed about cholesterol content in both male or female mud crab (Scylla serrata), whereas the knowledge about cholesterol content is important to consider nutrition intake to keep in good health. This research aim to determine cholesterol content in Scylla serrata by observing male and female crab in Pemalang and Demak. This research used descriptive method and sampling used purposive random sampling method. Determination of sampling position used purposive sampling method. This research has done in October 30th â€“ November 25th 2011. This research used 30 male and 30 female with mean body weigh 60 - 100 g. Analysis of cholesterol content used method by Liebermanâ€“Burchad. Result from this research indicates that S. serrata from Pemalang has cholesterol content more large than S. serrata from Demak, while the male crab from both place has higher cholesterol content than female crab (66,67 mg/100g and 61,67 mg/100g in male crab, and 64,67 mg/100g and 58,33 mg/100g in female crab).

Kajian Kerentanan Pantai Di Pesisir Kabupaten Rembang Provinsi Jawa Tengah Arini, Dwi Puspa; Indarjo, Agus; Helmi, Muhammad
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Kabupaten Rembang merupakan wilayah yang secara langsung menerima dampak dari aktivitas erosi akibat arus dan gelombang. Erosi memiliki sifat merusak yang dapatÂ menganggu keseimbangan ekosistem dan dapat merusak infrastruktur yang telah dibangun pada daerah tersebut dan daerah sekitarnya. Tujuan dari kajian ini adalah untuk mengetahui pengaruh mangrove terhadap tingkat kerentanan pantai dan untuk memetakan Indeks Kerentanan Pantai berdasarkan pada lima variabel yang digunakan yaitu: tipologi pantai, geomorfologi pantai, vegetasi mangrove, kemiringan pantai dan penggunaanÂ lahan pesisir. Terdapat empat kelas kerentanan pantai di Kabupaten Rembang yaitu rendah, sedang, tinggi dan sangat tinggi. Pengaruh Mangrove untuk Kecamatan Kaliori tidak terlalu tampak, sedangkan di Kecamatan Rembang terjadi perubahan nilai kerentanan pantai dari tingkat kerentanan rendah menjadi tingkat kerentanan sedang.

Simpanan Karbon Enhalus acoroides LF. Royle 1839 (Angiosperms: Hydrocharitaceae) di Pantai Gelaman dan Pantai Alang-Alang, Karimunjawa Jepara Viny Ratnasari; Ali Djunaedi; Adi Santoso
Journal of Marine Research Vol 9, No 1 (2020): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

ABSTRAK: Perubahan iklim disebabkan oleh berbagai aktifitas kegiatan manusia yang menghasilkan gas karbon diokasida ke atmosfer bumi yang akan berdampak pada pemanasan global. Ekosistem padang lamun memiliki kemampuan untuk menyerap dan menyimpan karbon dalam jumlah besar dari atmosfer yang dapat mengurangi emisi karbon. Tujuan penelitian ini untuk mengetahui kerapatan, tutupan lamun, biomassa dan simpanan karbon pada lamun Enhalus acoroides di Pantai Gelaman dan Pantai Alang-Alang. Penelitian menggunakan metode survei dan penentuan lokasi dipilih dengan menggunakan metode line transect quadrant yang mengacu pada metode LIPI. Sampling dilakukan pada titik 50 m setiap substasiun dengan metode pencuplikan. Pengukuran karbon pada sampel lamun menggunakan metode LOI.Kerapatan lamun di Stasiun 1 sebesar 1235 ind/m2 dan nilai tutupan lamun sebesar 68,76%. Kerapatan Stasiun 2 sebesar 1135 ind/m2 dan tutupan lamun sebesar 51,78%. Nilai rata-rata estimasi simpanan karbon lamun Enhalus acoroides di Stasiun 1sebesar 119.27 gC/m2 dan di Stasiun 2 sebesar 91.57 gC/m2. ABSTRACT: Climate change is caused by various human activities that produce carbon dioxide gas into the earth atmosphere which will have an impact on global warming. Seagrass ecosystem is able to absorb and store large number of carbon from the atmosphere that can reduce carbon emissions. This research were to determine the density, seagrass cover, biomass and carbon storage in seagrasses at Gelaman Beach (Station 1) and Alang-Alang Beach (Station 2). Survey and sampling. Were conducted using quadrant transect referring to LIPI method. Observation of the density value, the percentage of seagrass coverage was conducted in all points, while the sampling was conducted at the point 50 m on each substation by sampling method. Carbon measurement in seagrass sample used LOI method. Total seagrass density in Station 1 was 1235 ind/m2 and the total value of seagrass percentage cover was 68,76%. Total seagrass density in Station 2 was 1135 ind/m2 and total value of seagrass percentage cover was 51,78%. Average value for carbon savings estimated seagrass Enhalus acoroides in Station 1 was 119.27 gC/m2 and Station 2 was 91.57 gC/m2.

IDENTIFIKASI DAERAH RAWAN ROB UNTUK EVALUASI TATA RUANG PEMUKIMAN DI KABUPATEN DEMAK Kusuma, Adi Chandra; Irwani, Irwani; Widada, Sugeng
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Banjir rob is when an area inundated during the highest tide and low tide again at the lowest tide. The factor of banjir rob is the height of land, land subsidence, the distance from coastal, and the distance from river. Identification of rob prone areas in Demak is a measure of disaster mitigation to minimize the negative impact of the banjir rob that inundated settlement areas. The purpose of this study is to map the rob prone areas and evaluate the rob prone areas to the spatial planning of settlement area in Demak District. There are five classes of rob prone that inundating settlement area in Demak including the very prone class 14.464 ha, prone class 103.906 ha, the less safe class 335.472 ha, safe class 877.394 ha, very safe class 117 1,527 ha. Areas that included in very prone and prone classes are in Sriwulan Village, Bedono, Timbul loko, Bedono, Surodadi, Tambak bulusan, Morodemak, Purworejo, Betahwalang, Wedung, Berahankulon, and Kedungmutih. Areas that included in less safe, safe, and very safe spread classes are spreading on all villages in Demak District.

Kajian Kelayakan Fisik Pantai Seribu Ranting Jepara Sebagai Kawasan Wisata Pantai Novitasari, Dyah Pitaloka; Pratikto, Ibnu; Suryono, Chrisna Adhi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Pantai Seribu Ranting terletak di Desa Panggung, Kecamatan Kedung, Kabupaten Jepara, Jawa Tengah. Pantai Seribu Ranting memiliki potensi alam yang dapat dikembangkan untuk kegiatan pariwisata. Tujuan penelitian ini untuk mengevaluasi kelayakan fisik Pantai Seribu Ranting sebagai kawasan wisata pantai di Kabupaten Jepara dengan mengkaji parameter fisik pantai dan analisis SWOT. Penelitian ini bermanfaat mengetahui kelayakan kawasan wisata Pantai Seribu Ranting sebagai kawasan wisata pantai. Penelitian dilakukan pada bulan Desember 2018 dengan metode purposive sampling. Hasil penelitian menunjukkan bahwa Pantai Seribu Ranting sesuai untuk kegiatan wisata pantai karena hasil pengukuran di stasiun 1, stasiun 2, dan stasiun 3 menunjukkan nilai IKW diatas 80%. Nilai IKW yang diperoleh tergolong dalam tingkat kesesuaian S1, walaupun terdapat beberapa parameter yang kurang mendukung seperti perairan yang terlalu keruh. Akan tetapi hal itu dapat disiasati dengan menonjolkan kelebihannya seperti pasir putih, pantai yang landai, dan tidak adanya biota berbahaya. Analisis SWOT di Pantai Seribu Ranting menghasilkan tiga prioritas utama, yaitu: Memanfaatkan kondisi alam yang ada untuk menambah daya tarik wisata, membuat atraksi eduwisata tambak garam, dan membuat arena olahraga pantai.Â Seribu Ranting Beach is located in Panggung Village, Kedung Subdistrict, Jepara, Central Java. Seribu Ranting Beach have natural potential that can be developed for ecotourism. The purpose of this research is to evaluate the physical advisability of Seribu Ranting Beach as a beach tourism area in Jepara by studying the physical parameters of the beach and SWOT analysis. The advantage of this research is to know the advisability of ecotourism in Seribu Ranting Beach as beach tourism. The research has been carried out in December 2018 with a purposive sampling method. The results showed that Seribu Ranting Beach is suitable for beach tourism activities because the measurement results at station 1, 2, and 3 showed that IKW values are above 80%. The IKW values that have been obtained are classified as a level of S1 suitability, although there are some parameters that are less supportive like turbid water and a lot of garbage. However, this can be dealt by highlighting its advantages such as white sand, sloping beaches, and the absence of dangerous biota. The SWOT analysis on Seribu Ranting Beach produced three main priorities, namely: utilizing existing natural conditions to increase tourist attraction, making edutourism attractions of salt ponds, and creating a beach sports arena.

Uji Aktivitas Antioksidan Ekstrak Kasar Keong Bakau (Telescopium telescopium) dengan Pelarut yang Berbeda terhadap Metode DPPH (Diphenyl Picril Hidrazil) Rahmayani, Ulfah; Pringgenies, Delianis; Djunaedi, Ali
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Mangrove snail (Telescopium telescopium) is one of the marine gastropod and some communities use as foodstuff. The purpose of study was to find out the antioxidant activity by crude extract of mangrove snails (T. telescopium) using DPPH method in different solvents. The method consists of extraction using gradient solvent (chloroform, ethyl acetate and methanol), phytochemical test and antioxidant activity test using DPPH method. DPPH test using a series of concentration of 100 ppm, 200 ppm, 400 ppm and 800 ppm with triplicate repetition. IC50 values were determined by calculating the regression analysis % inhibition against the concentration of crude extract. The crude extract of mangrove snails is contained three bioactive components in the form of alkaloids, steroids and flavonoids.The results showed that the IC50 value of chloroform, ethyl acetate and methanol extract were 47274.00 ppm, 4143.58 ppm and 2329.81 ppm, respectively. The IC50 values of all crude extract have a very weak antioxidant activity (IC50 > 200 ppm), with IC50 of BHT as positive control was 4.91 ppm.

Ekologi Lamun di Pulau Sintok, Pulau Kemujan dan Pulau Menjangan Besar Kepulauan Karimunjawa, Jawa Tengah Mahakar, Abdul Latif; Hartati, Retno; Suryono, Suryono
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Lamun memiliki tingkat produktivitas primer yang tinggi dan memiliki kemampuan dalam meredam kekuatan arus dan gelombang. Membuat ekosistem lamun sangat menarik dan nyaman bagi kehidupan organisme perairan, baik sebagai tempat untuk mencari makan, tempat memijah ataupun tempat untuk pembesaran anak/larva/juvenile. Padang lamun merupakan ekosistem yang bermanfaat, tetapi kurang diperhatikan. Peneltian ini bertujuan Mengidentifikasi jenis, mengetahui kerapatan dan tutupan lamun di perairan Pulau Sintok, Pulau Kemujan dan Pulau Menjangan Besar Kepulauan karimunjawa. Metode yang digunakan dalam penelitian adalah metode survey. Pengamatan sampel lamun dilakukan dengan metode transek kuadran dan penentuan lokasi penelitian mengguanakan metode purposive sampling, dibagi berdasarkan zonasi. Analisis data berupa perhitungan kerapatan (Ind/mÂ²) dan penutupan lamun (%). Hasil penelitian telah menemukan 6 jenis lamun, yaitu CymodoceaÂ serrulata, Cymodocea rotundata, Enhalus acoroides, Thalasia hemprichi, Halophila ovalis dan Halophila minor. Pulau Sintok sebagai zona perlindungan bahari memiliki nilai kerapatan lamun tertinggi dengan kisaranÂ 98,22-5,56 Ind/mÂ². Diikuti oleh Pulau Menjangan Besar dengan kisaran 62,67-12,67 Ind/m sebagai zona pemanfaatan wisata bahari dan Pulau Kemujan sebagai zona pemukiman dengan kisaran 50-27,33 Ind/mÂ². Sedangkan untukÂ tutupan lamun, pada Pulau Sintok dengan kisaran 23,61-1,30%. Pulau Kemujan dengan kisaran 22,61-10,29% dan Pulau Menjangan Besar berkisar 18,75-2,39%. Thalasia hemprichi adalah spesies dengan nilai kerapatan dan tutupan tertinggi dari seluruh lokasi penelitian dengan 98,22 Ind/mÂ² dan 23,61%. Dan spesies terendah untuk kerapatan dan tutupan adalah Cymodocea serrulata dengan 5,56 Ind/mÂ² dan 1,30%.Â Seagrass have primary level of productivity is high and has the ability to soften the strength of the current and waves. Make seagrass ecosystem is very interesting and comfortable for the life of the organism the waters, both as a place to feeding ground, spawning ground or place to nursery ground. The seagrass is a useful ecosystem, but less noted. This research aims identify the species, know the density and seagrass cover at Sintok Island, Kemujan Island and Menjangan Besar Island Karimunjawa Islands. This research conducted on 15 May 2016 at Sintok Island, Kemujan Island and Menjangan Besar Island Karimunjawa Islands. The method used in this research is the survey method. Sample observation seagrass done with the transect quadrant method. The determination of the location of the research using the method purposive sampling, divided based on over zoning. Data Analysis in the form of calculating the density (Ind/mÂ²) and seagrass cover (%).The results of research has found 6 species of seagrass, namely, Cymodocea rotundata Cymodocea serrulata, Enhalus acoroides, Thalasia hemprichi, Halophila ovalis and Halophila minor. Sintok island as protection zone bahari has the highest seagrass density value with a range of 98,22-5.56 Ind/mÂ². Followed by of Menjangan Besar Island with 62,67-12,67 Ind/mÂ² as a zone of the utilization of marine tourism and Kemujan Island as residential zone with a range of 50-27,33 Ind/mÂ². While for the seagrass cover,on the Sintok Island with a range of 23,61-1,30%. Kemujan Island with a range of 22,61-10,29% and And Menjangan Besar Island range 18,75-2.39%. Thalasia hemprichi is the species with the value of the density and the highest cover from the entire research location with 98,22 Ind/mÂ² and 23,61%. And the species to low density and cover is Cymodocea serrulata with 5.56 Ind/mÂ² and 1,30%.

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